Māna: Conceit
Conceit measures the self against others. Fresh from breaking Edom's army, Amaziah stands at the point where winning makes a man feel qualified about everything, including whose gods are worth owning. The hand strong enough to take those statues as spoils is the hand that then sets them up and bows, which is where a swollen self ends up: serving what it captured.
Saraṇa: Refuge
Refuge is what you lean your weight on. Gods who let their own people be marched off in chains have already shown what their protection is worth, and the prophet holds that plain fact up. A refuge gets tested the way a bridge does, by whether it holds when you are standing on it.
Sīlabbata-parāmāsa: Grasping at rites and observances
This fetter grips the ceremony as though performing it did the work. Incense burned in front of a captured statue is a procedure done carefully and in order, and correct procedure is the whole of what Amaziah has to offer. None of the bowing touches his greed, his temper, or the nervousness about the next war that sent him shopping for a stronger patron.
Micchā-diṭṭhi: Wrong view
Wrong view runs cause and effect backwards. Taking a victory as evidence that the loser's gods have power is the error one question exposes: they could not keep their own people out of your hand. Beliefs like this survive by never being asked to explain themselves, which is why a question cuts deeper here than an accusation would.
Kalyāṇamitta: Good friend
The good friend says the thing you would rather not hear. Sending someone with a question instead of a sentence leaves Amaziah room to answer, and the door stays open until he slams it himself, telling the man to stop talking or be struck down. Friends of this kind are worth more than a whole court of agreeable advisers, and much harder to keep.